Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Operating activities
Net income	$ 30,863	$ 13,302	$ 8,587
Adjustments to reconcile net income to net cash provided by operating activities, net of effects of acquisitions
Depreciation and amortization expense	15,995	14,198	14,295
Stock-based compensation expense	9,633	4,534	610
Amortization of debt issuance costs and debt discount	5,648	591
Loss on debt modification and extinguishment	703	476
Loss on sale of a discontinued operation	1,039
Deferred income tax	10,914	(1,433)	1,960
Other, net	(45)	(124)	(67)
Changes in operating assets and liabilities:
Accounts receivable	(9,556)	(7,003)	4,368
Inventories	(4,416)	(5,763)	5,705
Prepaid expenses and other current assets	(714)	(8,473)	572
Income taxes	(4,975)	3,061	(1,013)
Accounts payable	1,663	1,466	(9,006)
Accrued expenses	915	12,665	(2,192)
Deferred revenue and customer deposits	699	(772)	(197)
Other liabilities	(14,444)	(98)
Cash provided by operating activities	43,922	26,627	23,622
Investing activities
Proceeds from sale of a discontinued operation	5,000
Acquisition of EFT Source, Inc, net of cash		(54,859)
Acquisitions of plant, equipment and leasehold improvements	(18,670)	(16,956)	(9,240)
Cash used in investing activities	(13,670)	(71,815)	(9,240)
Financing activities
Proceeds from sale of Company stock, net of issuance costs	135,304		50
Proceeds from Senior Term Loan		60,000
Payment on Senior Term Loan	(170,929)	(11,045)	(7,122)
Proceeds from First Lien Term Loan	435,000
Payment on First Lien Term Loan	(122,500)
Proceeds from line of credit		19,300	9,750
Payment on line of credit		(19,300)	(14,750)
Loan issuance costs	(17,773)	(440)
Proceeds from employee note receivable	108	19	10
Dividend distribution on Series A Preferred Stock	(230,315)
Redemption of preferred and common stock	(58,296)		(48)
Cash (used in) provided by financing activities	(29,401)	48,534	(12,110)
Effect of exchange rates on cash	(186)	(107)	37
Net increase in cash and cash equivalents:	665	3,239	2,309
Cash and cash equivalents, beginning of period	12,941	9,702	7,393
Cash and cash equivalents, end of period	13,606	12,941	9,702
Supplemental disclosures of cash flow information
Interest	11,986	6,793	7,248
Income taxes	$ 10,136	$ 3,219	$ 4,680